水平双向地震作用下基础隔震结构支座位移的确定

英文篇名：Determination of Isolator Displacement of Base-Isolated Structure under Bilateral Earthquake Excitation
中文刊名：建筑科学
英文刊名：Building Science
作者：王建强 ; 赵湘育 ; 丁永刚 ; 李大望
英文作者：WANG Jian-qiang~1 ; ZHAO Xiang-yu~1 ; DING Yong-gang~2 ; LI Da-wang~3(1.School of Civil Engineering ; Zhengzhou University ; Zhengzhou 450002 ; China ; 2.School of Civil Engineering and Architecture ; Henan University of Technology ; Zhengzhou 450052 ; China3.School of Civil Engineering ; Shenzhen University ; Shenzhen 518060 ; China)
中文关键词：基础隔震结构 ; 支座位移 ; 水平双向地震作用
英文关键词：base isolated structure ; isolator displacement ; bilateral earthquake excitation
出版日期：2010-01-20
机构：郑州大学土木工程学院;河南工业大学土木建筑学院;深圳大学土木工程学院;
年：2010
期：01
出版单位：建筑科学

摘要

对不同场地条件下,不同周期的基础隔震结构在水平双向和单向地震作用下的隔震支座位移进行了对比分析,表明水平双向地震作用下隔震支座的总位移均明显大于水平单向地震作用下的支座位移,其比值的平均值为1.187,因而,在简化设计中确定基础隔震结构隔震支座位移时,可将水平单向地震作用下的隔震支座位移增大20%,以考虑水平双向地震作用对基础隔震结构隔震支座位移的影响。
The analysis on the isolator displacement of the base-isolated structure with different sites and period under bilateral and unilateral earthquake excitation is carried out.The maximum isolator displacement under bilateral ground motions is obviously lager than that under unilateral ground motion,and the average value of the ratio is 1.187.In order to considering the influence of the bilateral earthquake excitations on the isolator displacement,the maximum isolator displacement should increase by 20% as compared with that of the unilateral ground motion.

引文

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